| Language | Reflex(es) | Gloss | Grammar | Sources |
|---|
| English |
| English | mariculture | cultivation of marine organisms | n | AHD LRC |
| English | mermaid | fabled marine creature: fish-tailed woman | n | W7 LRC |
| English | merman, mermen | fabled marine creature: fish-tailed man | n | W7 LRC |
| English | beche-de-mer | trepang, lit. sea grub | n | AHD W7 LRC |
| English | cormorant | dark-colored web-footed seabird | n | AHD W7 LRC |
| English | maar | circular flat-bottomed volcanic crater | n | AHD LRC |
| English | mare | extensive dark area on surface of moon/Mars | n | AHD W7 LRC |
| English | marinara | tomato sauce with onion/garlic/spices | n | AHD LRC |
| English | marine | re: sea | adj | AHD W7 LRC |
| English | Marish | marshy Shire area in Tolkien: The Lord of the Rings | prop.n | LRC |
| English | maritime | re: sea commerce/navigation | adj | AHD W7 LRC |
| English | marram | beach grass | n | AHD LRC |
| English | marsh | soft wet land usu. having monocotyledons (grasses/cattails) | n | AHD W7 LRC |
| English | meerkat | small mongoose-like S African mammal | n | AHD LRC |
| English | meerschaum | hydrous magnesium silicate: light, fine white clay/mineral | n | AHD W7 LRC |
| English | mere | sea, lake, pool, sheet of standing water | n | AHD W7 LRC |
| English | Mirrormere | glassy lake in Tolkien: The Lord of the Rings | prop.n | LRC |
| English | morass | marsh, swamp | n | AHD W7 LRC |
| English | Shadowmere | reflecting lake in Tolkien: The Lord of the Rings | prop.n | LRC |
| English | ultramarine | lit. beyond the sea | adj | AHD W7 LRC |
| English | ultramarine | blue pigment: powdered lapis lazuli | n | AHD W7 LRC |
| British English | ormer | sea-ear, ear-shell, Channel Islands abalone | n | AHD LRC |
| Middle English | mere | mere | n | W7 LRC |
| Middle English | cormeraunt | cormorant | n | W7 LRC |
| Middle English | marine | marine | adj | W7 LRC |
| Middle English | mersh | marsh | n | W7 LRC |
| Old English | mere, mære | mere | n.masc | ASD LRC |
| Old English | mere-hūs | lit. sea-house | n.neut | LRC |
| Old English | mere-men(n), mere-men(n)en | siren | n.fem | ASD LRC |
| Old English | mere-næddra | lamprey, lit. sea-adder | n.masc | ASD LRC |
| Old English | mere-swīn | dolphin, porpoise, lit. sea-pig | n.neut | ASD LRC |
| Old English | mere-wērig | weary of seafaring, lit. sea-weary | adj | ASD LRC |
| Old English | mere-wīf | water-witch, woman living in lake | n.neut | ASD LRC |
| Old English | mer(i)sc | marsh | n.masc | W7 LRC |
| West Germanic |
| Middle Dutch | mersch | marsh | n | W7 LRC |
| Dutch | meer | mere | n | TLL LRC |
| Dutch | mierikswortel | horseradish | n | TLL LRC |
| Dutch | moeras | morass | n | W7 LRC |
| Old Saxon | meri | mere | n.fem | ASD LRC |
| Old High German | meri, mari | mere | n.masc | W7 ASD LRC |
| Old High German | meri-ratih | horseradish | n | KDW LRC |
| German | Maar | maar, volcanic lake | n.neut | AHD LRC |
| German | Marsch | marsh | n.fem | LRC |
| German | Meer | mere | n.neut | ASD LRC |
| German | Meerrettich | horseradish | n | TLL LRC |
| German | Morast | morass | n.masc | LRC |
| North Germanic |
| Old Norse | marr | mere | n.masc | LRC |
| Icelandic | marr | mere | n.masc | ASD LRC |
| East Germanic |
| Gothic | marei | mere | n.wk.fem | LRC |
| Italic |
| Latin | mare, maris | mere | n.neut | LRC |
| Latin | marinus | re: sea | adj | W7 LRC |
| Latin | maritimus | maritime | adj | W7 LRC |
| Vulgar Latin | *mara | maar, lake, standing water | n | AHD LRC |
| Medieval Latin | ultramarinus | (coming from) beyond the sea | adj | W7 LRC |
| Portuguese | bicho-do-mar | beche-de-mer | n | AHD LRC |
| Old French | cormareng | cormorant | n.masc | W7 LRC |
| Old French | marenc | re: sea | adj | W7 LRC |
| Old French | maresc | marsh | n | W7 LRC |
| Middle French | cormorant | cormorant | n.masc | W7 LRC |
| French | bêche-de-mer | beche-de-mer | n.fem | W7 LRC |